Home / 1,267,136.22-1,900,710.64-320,507.85

Finding the Fourth Proportional to 1,267,136.22, 1,900,710.64 and 320,507.85

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Solution

The fourth proportional to 1,267,136.22, 1,900,710.64 and 320,507.85 is: 480,763.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,136.22 : 1,900,710.64 = 320,507.85 : x
  2. Step 2: Convert to fraction form
    1,267,136.22/1,900,710.64 = 320,507.85/x
  3. Step 3: Cross multiply
    1,267,136.22x = 1,900,710.64 × 320,507.85
  4. Step 4: Simplify right side
    1,267,136.22x = 609,192,680,698.52
  5. Step 5: Solve for x
    x = 609,192,680,698.52/1,267,136.22
  6. Step 6: Final answer
    x = 480,763.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.